hebdrich



Patented Nov. I, |898.

No. sla-,62.9.

W. F. HERDBICH. coMPouNn Luck.

(Application filed May 11, 189B.)

(No Model.)

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ns co.. PHOTO-uma, wAsmNs'roN D c Nrrnn STATES WILLIAM F. I-IERDRICII, OF CHICAGO, ILLINOIS, ASSIGNOR OF TWO-THIRDS TO SIMON LICHTENSTEIN AND ADOLPH REINACII, OF SAME PLACE.

COIVIPOUND LOCK.

SPECIFICATION forming part of Letters Patent No. 613,629, dated November 1, 1898. Application iiled May 11., 1898. Serial No. 680,338. (No model.)

T all whom t may concern: Beit known that I, WILLIAM FREDERICK I-IERDRICH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Compound Locks, of which the following is a specification.

The object of my invention is to provide a simple, economical, and efficient compound Io lock; and the invention consists in the features, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure l is a side elevation ot' a lock and case constructed in accordance with my improvements,`having one of the side plates of the case removed, so as to show the interior operative mechanism; Fig. 2, a similar view of the lock with the tumblers removed; Fig. 3,- an enlarged crosszo sectional elevation taken on line 3 of Fig. 1. Figs. 4, 5, 6, 7, and 8 are elevations of the compound tumblers; Fig. 9, a side elevation of the socket and operating-lever, and Fig. 10 a side elevation of the key. z 5 In the art to which this invention relates it is Well known that the opening of an ordinary lock by means of a single key, piece of Wire, or case-knife is not very difficult. My invention is intended to overcome this objection by providing a compound lock in which there are two bolts operated by one key which are'locked in their in and out positions. In constructing a lock in accordance with my improvements I provide a case or frame A, of the desired size, shape, and strength, adapted to contain and hold the different parts in their operative positions. This case may be made in any of the usual mannersthat is, provided with a face-plate o. and cap 4o a', which cap is secured to the main portion of the case by means of screws which enter the openings a2, as shown particularly in Fig. l.

For the purpose of locking a door or other movable structure in connection with an immovable portion I provide a slide-bar B, which has two dead or locking'boltsb and h' integrally secured to it, so as to be moved through the face-plate and lock the desired 5o article. In order to operate this locking-bolt,

I provide a key-socket C, which has an operating lever or arm D integrally secured to it and which is pivotally mounted in the case of the lock, so that as it moves it operates to push the dead-bolt out on the `upper side, as shown in Fig. 2, and to strike it on the opposite part when it is moving it in.

In order to lock the dead-bolts in their out and in positions, a set of compound tumblers E', E2, E3, E4, and E5 is provided, arranged 6o alternately, so that one set of three tumblers is pivoted to the case by means of the stud e and the other set of two tumblers pivoted to the case diametrically opposite on the stud e'. These tumblers are so arranged in connection with the key-socket that they span or encom pass the same and are cut in such a manner that they can be acted on bythe projections g and g on the key Gr. Each end of the tumblers diametrically opposed is provided with 7o recesses or slots E and E6, so arranged that when the key turns with the socket in one direction it contacts the tumblers, so as to swing them on one pivot and bring the openings E in alinement and allow the pin b2 of 75 the slide-bar to pass into the enlarged recess of the opening to lock such bolt in that (the outer) position. When the dead-bolts are in their outer or locked position, the turning of the key in the opposite direction will swing 8o the tumblers on the pivot e, bringing the openings E6 into parallelism or alinement, so that the pin b3 may pass in through the same and into the enlarged recess and hold the dead-bolt at its inner or unlocked position.

From the foregoing description of construei tion and operation it will be seen that the dead-bolt is a compound deadebolt and locked in its inner and outer positions, thus pre venting either the locking or unlocking of the 9o bolt without the assistance of a key con-v structed for that purpose. Further, it will be seen that both sides of the key--that is, the part that enters the key-socket-are provided with projections gand g of a different 9 5 combination, thus rendering the key in its nature compound and therefore more difticult to counterfeit or take an impression from.

Vhen the dead-bolts have been thrown in or out by the'action of the key in the socket, roo it is highly desirable to vibrate the tumblers on their pivots, so as to bring them down into the position shown in Fig. l, and thereby securely lock the sliding bar, with its dead-bolts, from further reciprocations or movements until the tumblers have been vibrated. In order to accomplish this result, the key-socket is constructed so that the portion C to one side of the longitudinal center extends out farther than the opposite side and acts as a cam. This cam portion of the key-socket strikes the edge e2 of the central perforation in the tumblers, vibrating the same on their pivots, so as to bring the narrow apertures E and EG of the locking-slots out of alineinent with the studs b2 and b3, and thus hold the parts against further movement.

I claim- 1. In a compound lock the combination of a sliding bar provided with two dead-bolts, a set of tumblers oppositely pivoted and provided with a substantially7 central perforation and two locking slots or perforations in the outer edge, a pin or pins on the sliding` bar adapted to enter the locking slots or perforations and lock the dead-bolts in their outer and inner positions, and key mechanism adapted to pass through the central apertures in the tumblers and operate the same to lock or unlock the dead-bolts, substantially as described.

2. In a compound lock, the combination of a oase portion, a sliding bar movably mounted therein and provided with two dead-bolts secured integrally therewith and with a substantially central irregular opening, a keysocket rotatably mounted in the case and provided with an arm adapted to contact the sliding bar at each side thereof and move it in or out, a set of tumblers oppositely pivoted provided with a substantially central opening and locking slots, perforations or openings in the outer edge thereof, pins on the sliding bar adapted to enter each of such openings and hold the dead-bolts in their locked and unlocked positions, and key mechanism adapted to enter the key-socket and operate the tumblers so as to permit the locking or unlocking ot' the dead-bolt, substantially as described.

3. In a compound lock, the combination of a sliding bar provided with two dead-bolts, a set of tumblers oppositely pivoted and provided with a substantially central perforation and two elongated perforations in the outer edge thereof, a pin or pins 011 the sliding bar adapted to enter the locking slots or perforations to lock the dead-bolts in their outer and inner positions, and a key-socket rotatably mounted in the case portion to receive a key and provided witha cam portion adapted to strike the tumblers and vibrate them after the pin or pins have entered the locking perforations so as to lock such pins in the slot or slots, substantiallyas described.

XVILLIAM F. I-IERDRICH.

Witnesses:

THOMAS F. SHERIDAN, THOMAS B. M oGREeon. 

